bfd/

bfd/
	PR 6789
	* elf.c (assign_file_positions_for_load_sections): Call
	_bfd_elf_map_sections_to_segments, not elf_modify_segment_map.
	(get_program_header_size): Protect against NULL info.
	(_bfd_elf_map_sections_to_segments): Likewise.
	* elf32-spu.c (spu_elf_additional_program_headers): Likewise.
ld/testsuite/
	* ld-elf/extract-symbol-1sec.d: Correct section lma.